MSNBC on Infinera's Optical Chip

pnoti writes: "This article at MSNBC is a loose overview of Infinera's new chip with circuits that control the flow of light instead of the flow of electrons. 'If this chip performed as they hoped, it would shatter many of the theoretical limits regarding the behavior of light in optical communications networks.'" Update: 04/10 04:26 GMT by T : That's MSNBC, not The New York Times -- oops.

Comments

Red Herring

[The Gardener]

Yeah, Red Herring carried the story, and with a little lower "fluff factor". At least, it seemed to me . . .

The Gardener

Photonic bandgap technology

[Vireo]

Well, they are certainly not the firsts to make photonic chips. Optical mux/demux (cascaded couplers) are routinely built as planar waveguides on semiconductor materials. However, the size of their chip seems really small, which suggests that they use photonic bandgap technology, which uses very small arrays of refraction index changes in which light at certain wavelenght can't propagate to make it perform tricks, like turning at 90 degrees on very small distance. However, I didn't saw any mention of this in the article. Anyone can confirm it is the case?

Re:Makes you wonder

[Soko]

From the article:

Hardly. Infinera's thumbnail-size chip is the first integrated photonic circuit. Though Infinera won't reveal the chip's cost, when built with manufacturing techniques used by chip makers like Intel and Advanced Micro Devices, it likely could be made very cheaply. The savings in manufacturing in turn would lower the cost of network equipment by half, perhaps even more. Beleaguered network carriers like Level 3 Communications and bankrupt Global Crossing could build networks for much less, and run them more efficiently and at a lower cost--maybe even profitably. For consumers, Infinera's chip could be instrumental in allowing communications companies to offer high-speed Internet access at affordable prices. And one day this technological breakthrough could lead to a device capable of projecting a holographic display, as on the TV series Star Trek.

Pretty much refutes your points.

The best thing about photonics is the absence of (photon) migration, which is a big problem with small trace size electronics (electron migration). (Aside: If a silicon engineer knows better, please correct me.) No migration happens because photons have 0 rest mass, and therefore don't have intertia. This means they are a lot less likely to over shoot the switching mechanism, and maintian signal. This is in addition to thier electrical interference resistance.

Commercial products may take a while to come to fruition since there will have to be some major re-tooling at the fabs, but with so many huge benefits, it'll come sooner than you think.

Now, where to put that Holodeck....

Soko

change of address

[tux-sucks]

Indium Phosphide Valley, anyone?